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1.6K
Nov 5, 2009
11/09
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Image created by Reto Stockli with the help of Alan Nelson, under the leadership of Fritz Hasler
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Recalling the famous Apollo-era pictures of Earth taken by lunar astronauts, this digital image is a spectacular portrait of the Western Hemisphere at the time of one of the strongest hurricanes ever observed in the Eastern Pacific.This combination of science, engineering and artistry was generated by researchers in the Laboratory for Atmospheres at NASA's Goddard Space Flight Center, Greenbelt, MD, using data from three different Earth-observing satellite instruments.The research team's goal...
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Topics: What -- Earth, What -- Environmental Satellite, What -- GOES-O, What -- Polar, What -- Moon, Where...
Source: http://visibleearth.nasa.gov/view_rec.php?id=174
1,658
1.7K
Nov 4, 2009
11/09
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Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
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Rich green vegetation lines the fertile banks of Egypt’s Nile River, culminating in the green fan of the river’s delta. The contrast between the green around the river and the surrounding tan of the northern Sahara Desert makes the river easy to see in satellite image such as this one, acquired by the Moderate Resolution Imaging Spectroradiometer (<a href="http://modis.gsfc.nasa.gov" target="outlink">MODIS</a>) onboard NASA’s <a...
Topics: Where -- Red Sea, Where -- Israel, Where -- Jordan, Where -- Saudi Arabia, Where -- Sudan, Where --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=6566
4,038
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Nov 4, 2009
11/09
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Astronaut photograph was acquired in July of 1969 with a Hasselblad film camera. The image is provided by the Earth Observations and Image Analysis Laboratory, Johnson Space Center. The supports the laboratory to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC
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eye 4,038
favorite 20
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The Moon (or ‘Luna’ in Latin) has occupied a prominent place in myth and folklore throughout human history. In the higher latitudes of the northern hemisphere, the day-to-day change in the time of moonrise is smallest in the months surrounding the fall equinox. This consistency is due to the small angle between the horizon and the ecliptic (the apparent sky path traveled by both the Moon and the Sun) at this time of year. The bright, full disk of Luna provides enough dependable light in the...
Topics: What -- Moon, What -- Sun, What -- Apollo 11, What -- Earth
Source: http://visibleearth.nasa.gov/view_rec.php?id=16959
873
873
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eye 873
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NASA’s Total Ozone Mapping Spectrometer (TOMS) provides measurements that enable scientists to accurately estimate how much of the sun’s UV-B (290 to 320 nm) radiation reaches the Earth's surface. Too much exposure to these wavelengths causes sunburn in human skin.The false-color image above is a global map, averaged from TOMS snapshots collected every day over a one-month period, showing where more or less UV radiation reaches the surface. Yellow pixels show the highest levels of radiation...
Topics: What -- Spectrometer, What -- Polar, Where -- Goddard Space Flight Center (GSFC)
Source: http://visibleearth.nasa.gov/view_rec.php?id=7158
3,186
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Nov 4, 2009
11/09
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Image copyright
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eye 3,186
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Tucked deep in the Cambodian rainforest, the ancient Angkor Wat temple is considered one of the most valuable architectural sites in Asia. Angkor Wat is the pinnacle of the city of Angkor, capital of the once-powerful Khmer Empire of Southeast Asia. The temple was built by Suryavarman II between 1113 and 1150 AD. Dedicated to the Hindu god Vishnu, Angkor Wat is a representation of Mount Meru, home of the gods and the center of the Hindu universe. In addition to its unique pyramid temple...
Source: http://visibleearth.nasa.gov/view_rec.php?id=17041
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434
Oct 30, 2009
10/09
by
Image courtesy NASA/JPL/NIMA
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eye 434
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These two images are two-dimensional (top) and three-dimensional (bottom) views of the same area, southeast of Bhuj, India. Together they demonstrate how NASA's <a href="http://www.jpl.nasa.gov/srtm/">Shuttle Radar Topography Mission</a> (SRTM) elevation models can be used to help in the interpretation of satellite imagery. The image was acquired by the Landsat 7 satellite. The top view is a standard panchromatic (visible and near infrared) satellite...
Topics: What -- SRTM, What -- Landsat 7, What -- Shuttle Radar Topography Mission, What -- Earth, What --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=1779
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Nov 5, 2009
11/09
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Astronaut photograph was taken by the STS-111 Space Shuttle crew that recently returned from the International Space Station. The image was taken June 12, 2002 using a digital camera. The image was provided by the at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC
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<font size="-2" face="helvetica, arial, sans"><a href="http://eol.jsc.nasa.gov/sseop/images/EO/highres/STS111/ STS111-E-5224.JPG" target="outlink">high resolution</a> (1000 pixels wide)</font>Southern California’s Salton Sea is a prominent visual for astronauts. This large lake supports the rich agricultural fields of the Imperial, Coachella and Mexicali Valleys in the California and Mexico desert....
Topics: Where -- Salton Sea, Where -- California, Where -- Colorado
Source: http://visibleearth.nasa.gov/view_rec.php?id=16139
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Nov 4, 2009
11/09
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Astronaut photograph was taken on January 26, 2004, using a Kodak digital camera with a 400 mm lens, and was provided by Julie Robinson, Earth Sciences and Image Analysis Laboratory (Lockheed Martin), Johnson Space Center. The supports the laboratory to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC
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eye 5,406
favorite 2
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This international image of the El Paso-Juárez area on the U.S.-Mexico border is the <a href="http://www.jsc.nasa.gov/news/releases/2004/J04-006.html"><strong>100,000th</strong> photograph of Earth</a> that astronauts have taken from the International Space Station. It was taken on January 26, 2004, by Expedition 8 crewmembers.The Rio Grande can be seen meandering through the area, forming the boundary between the sister cities...
Topics: What -- International Space Station (ISS), What -- Sun, What -- Earth, Where -- Texas
Source: http://visibleearth.nasa.gov/view_rec.php?id=16721
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Oct 30, 2009
10/09
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Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
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An extremely turbid Sea of Azov was seen by SeaWiFS during a recent overpass. Sensor: OrbView-2/SeaWiFS. Data Start Date: 10/9/98.
Topic: Where -- Sea of Azov
Source: http://visibleearth.nasa.gov/view_rec.php?id=1326
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47
Nov 5, 2009
11/09
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NASA image created by Jesse Allen, Earth Observatory, using data obtained from the team.
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Typhoon Mawar is shown here as it approaches the coast of Japan in this satellite image. Mawar will come ashore in Japan on its projected course. The forecast for its strength has fluctuated in the past day (August 23), however. While Typhoon Mawar was not expected to weaken in the next few days, neither was it gaining strength as it approached Japan.The Moderate Resolution Imaging Spectroradiometer (<a href="http://modis.gsfc.nasa.gov">MODIS</a>) on...
Topics: Where -- Japan, Where -- Tokyo
Source: http://visibleearth.nasa.gov/view_rec.php?id=20191
1,049
1.0K
Nov 5, 2009
11/09
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NASA/JPL/NIMA
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This stereoscopic image pair is a perspective view that shows the western part of the city of Pasadena, California, looking north toward the San Gabriel Mountains. Portions of the cities of Altadena and La Canada Flintridge are also shown. The cluster of large buildings left of center, at the base of the mountains, is the Jet Propulsion Laborat ory. This image shows the power of combining data from different sources to create planning tools to study problems that affect large urban areas. In...
Topics: What -- Shuttle Radar Topography Mission, What -- SRTM, What -- Landsat, What -- Earth, What --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=347
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670
Oct 30, 2009
10/09
by
Image courtesy at the
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This true-color image was taken by the Enhanced Thematic Mapper Plus (ETM+) aboard the Landsat 7 satellite on September 12, 2001, at roughly 11:30 a.m. Eastern Daylight Savings Time.Visit the USGS Landsat 7 site for <a href="http://landsat7.usgs.gov/browse/wtc.html">additional Landsat imagery,</a> the NASA home page for <a href="http://www.nasa.gov/newsinfo/WTCplume.html">photos from the space station and MODIS,</a> and...
Topic: What -- Landsat 7
Source: http://visibleearth.nasa.gov/view_rec.php?id=2103
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Nov 4, 2009
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Astronaut photograph was taken August 18, 2003 with a Kodak DCS760 digital camera equipped with an 800mm lens and provided by Cynthia A. Evans (Lockheed Martin / Earth Observations Laboratory, Johnson Space Center). The supports the laboratory to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC
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high resolution 1000 pixel-wide image (650 kB JPEG) All astronauts are interested in observing unique human footprints from space, and especially those reflecting thousands of years of human activities. The region of the Great Pyramids of Giza—the last remaining wonder of the Seven Wonders of the Ancient World—is a favorite target. Although the pyramids have been imaged many times before by astronauts (for example: Space Station View of the Pyramids at Giza) , each new image provides a...
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Topics: What -- Sphinx, What -- Sun, Where -- Cairo, Where -- Egypt
Source: http://visibleearth.nasa.gov/view_rec.php?id=16566
2,980
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Nov 4, 2009
11/09
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Image courtesy NASA/JPL/Texas A&M/Cornell
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On May 19th, 2005, NASA’s Mars Exploration Rover Spirit captured this stunning view of the Sun sinking below the rim of Gusev crater on Mars. This Panoramic Camera (Pancam) mosaic was taken around 6:07 in the evening of the rover’s 489th Martian day, or sol. Spirit was commanded to stay awake briefly after sending that sol’s data to the Mars Odyssey orbiter just before sunset. This small panorama of the western sky was obtained using Pancam’s 750-nanometer, 530-nanometer and...
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Topics: What -- Mars Exploration Rover (MER), What -- Spirit, What -- Sun, What -- Crater, What -- Mars,...
Source: http://visibleearth.nasa.gov/view_rec.php?id=17213
2,135
2.1K
Nov 5, 2009
11/09
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NASA JPL
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eye 2,135
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Global images of Earth from Galileo. In each frame, the continent of Antarctica is visible at the bottom of the globe. South America may be seen in the first frame (top left), the great Pacific Ocean in the second (bottom left), India at the top and Australia to the right in the third (top right), and Africa in the fourth (bottom right). Taken at six-hour intervals on December 11, 1990, at a range of between 2 and 2.7 million kilometers (1.2 to 1.7 million miles). P-37630 < P>These images...
Topics: What -- Earth, What -- Galileo, What -- Sun, Where -- Pacific Ocean, Where -- Australia, Where --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=589
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105
Nov 4, 2009
11/09
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Image courtesy Jacques Descloitres, MODIS Land Group, NASA GSFC
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To paraphrase English author T.H. White, <i>borders</i> are the one thing a man sees that a bird cannot see as it flies high overhead. For the 15th consecutive day, differences in ideology have sparked violence and tension in the middle-east as the rest of the world watches, concerned.This true-color image of the region was taken on September 10, 2000, by the MODerate-resolution Imaging Spectroradiometer (MODIS) flying aboard NASA's Terra spacecraft. The image shows...
Topics: What -- Terra, Where -- Israel, Where -- Mediterranean Sea, Where -- Sea of Galilee, Where --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=15527
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62
Oct 30, 2009
10/09
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Image by Robert Simmon, based on IKONOS data provided by through the with help from Denelle Grant and Compton Tucker, NASA GSFC.
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Throughout history, patterns of settlement have followed roads, rivers, and other lines of transportation. The frontiers of the 21st century are no exception. This high-resolution image of Amazonia shows farms cleared from the jungle spreading out on either side of a narrow dirt road. Above and to the right of the river that bisects the image is almost unbroken forest. The river, a tributary of the Amazon, is colored brown by the large amount of sediment it carries, possibly the result of...
Source: http://visibleearth.nasa.gov/view_rec.php?id=1585
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Nov 5, 2009
11/09
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was provided by the Earth Sciences and Image Analysis Laboratory at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC .
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The modern city of Constanta, with a population of more than 348,000, is located on the western coast of the Black Sea and is the principal seaport for Romania. It is the site of the ancient Greek city of Tomis, colonized in the 6th century B.C. In the 1st century A.D. Tomis became a flourishing provincial capital of the Roman Empire. It acquired its current name from the emperor Constantine I. Today, Constanta is a thriving port-of-entry for Romania, offering both tourist attractions and an...
Topics: What -- STS-112, Where -- Black Sea, Where -- Romania
Source: http://visibleearth.nasa.gov/view_rec.php?id=16272
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Nov 5, 2009
11/09
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Data: AVHRR, NDVI, Seawifs, MODIS, NCEP, DMSP and Sky2000 star catalog; AVHRR and Seawifs texture: Reto Stockli; Visualization: Marit Jentoft-Nilsen
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Fully lit and fully dark (city lights) full disk image pair centered on theNorthPole. The images were made from a combination of AVHRR, NDVI, Seawifs, MODIS, NCEP, DMSP and Sky2000 catalog data. Sensor: No Satellite/Composite.
Topic: What -- DMSP
Source: http://visibleearth.nasa.gov/view_rec.php?id=1928
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759
Nov 5, 2009
11/09
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Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
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A clear day provided SeaWiFS with this full view of Italy. Sensor: OrbView-2/SeaWiFS. Data Start Date: 6/23/99.
Topic: Where -- Italy
Source: http://visibleearth.nasa.gov/view_rec.php?id=1174
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Nov 5, 2009
11/09
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NASA images courtesy the at NASA GSFC.
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In early and mid-April 2006, waves of dust washed out of the Gobi Desert and spread across eastern China, the Korean Peninsula, and Japan. According to news reports, a dust storm that hit <a href="http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=13484">South Korea</a> over the weekend of April 8 was the worst the country had seen in four years.This pair of images shows a massive wave of dust that blew out of deserts in...
Topics: Where -- China, Where -- Japan, Where -- United States of America
Source: http://visibleearth.nasa.gov/view_rec.php?id=17515
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90
Nov 5, 2009
11/09
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NASA JPL
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eye 90
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This spaceborne radar image shows the city of Honolulu, Hawaii and adjacent areas on the island of Oahu. Honolulu lies on the south shore of the island, along the bottom of this image. Diamond Head, an extinct volcanic crater, is seen in the lower right. The bright white strip left of Diamond Head is the Waikiki Beach area. Further west are the downtown area and harbor. Runways of the airport can be seen in the lower left. The Koolau mountain range runs through the center of the image. The...
Topics: What -- Spaceborne Imaging Radar, What -- Crater, What -- Space Shuttle Orbiter, What -- Endeavour,...
Source: http://visibleearth.nasa.gov/view_rec.php?id=500
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Nov 5, 2009
11/09
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Image courtesy Brian Montgomery, NASA GSFC; data by Paul Lowman and Jacob Yates, NASA GSFC
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This tectonic relief map of the north pole is the result of new satellite-based technologies which are being used to analyze tectonic activity in the Earth's crust. These maps, known as Digital Tectonic Activity Maps (DTAMs), synoptically depict the architecture of the Earth's crust including current and past tectonic activity. This is significant because it permits researchers to view broad zones of activity over the entire surface of the Earth, rather than focusing on single boundary...
Topic: What -- Earth
Source: http://visibleearth.nasa.gov/view_rec.php?id=1491
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Nov 4, 2009
11/09
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NASA image created by Jesse Allen, Earth Observatory, using SRTM data obtained from the University of Maryland’s .
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For eleven seconds on Tuesday morning February 22, 2005, the ground shook in southern Iran as a 6.4-magnitude earthquake rattled the mountainous area near the town of Zarand. According to news reports, more than 500 people have been killed, and tens of thousands of people have been affected in dozens of scattered villages, many of which were almost completely destroyed.This image shows the topography around the town of Zarand, in the Kerman region to the west of the Lut Desert. Two lines of...
Topics: What -- Shuttle Radar Topography Mission, What -- SRTM, What -- Space Shuttle Orbiter, What --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=17101
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93
Nov 4, 2009
11/09
by
Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
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eye 93
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After blasting over the Northern Mariana Islands, Typhoon Songda continued its course westward towards Japan. This image of the storm was acquired by the Moderate Resolution Imaging Spectroradiometer (<a href="http://modis.gsfc.nasa.gov">MODIS</a>) on NASA’s <a href="http://terra.nasa.gov/">Terra</a> satellite on September 2, 2004, at 01:25 UTC. At that time, the storm had winds of 204 kilometers per hour (127 mph)...
Topics: Where -- Northern Mariana Islands, Where -- Japan, Where -- Korea, Where -- Vietnam
Source: http://visibleearth.nasa.gov/view_rec.php?id=6813
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119
Nov 4, 2009
11/09
by
Jeff Schmaltz
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eye 119
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The Serengeti Plain of Tanzania and Kenya highlights this image of Southeastern Africa. This savanna (grassland with sparse trees) region is renowned for its biological diversity, especially the so-called “big five”, which include elephants, lions, leopards, rhinos, and Cape buffalo. Some of the oldest fossils of early humans are also found in this area. Serengeti National Park, along with several other game preserves in the surrounding region total about 30,000 square kilometers (12,000...
Topics: Where -- Tanzania, Where -- Kenya
Source: http://visibleearth.nasa.gov/view_rec.php?id=8334
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56
Nov 5, 2009
11/09
by
NASA JPL
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eye 56
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This is a space radar image of the area around the Unzen volcano, on the west coast of Kyushu Island in southwestern Japan. Unzen, which appears in this image as a large triangular peak with a white flank near the center of the peninsula, has been continuously active since a series of powerful eruptions began in 1991. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X- SAR) aboard the space shuttle Endeavour on its 93rd orbit on April 15, 1994. The...
Topics: What -- Space Shuttle Orbiter, What -- Spaceborne Imaging Radar, What -- Endeavour, What -- Earth,...
Source: http://visibleearth.nasa.gov/view_rec.php?id=595
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Nov 4, 2009
11/09
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Image courtesy
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This image presents a remarkable view of the North Atlantic Ocean, stretching from the equator and western Africa northward to Iceland and Greenland, with sunset occurring over (north to south) Scandinavia, France, Spain, Algeria, Mali, and the Ivory Coast.Here is an opportunity for you to play image detective. How on Earth was this image made? Is it a painting, or a map? Is it a photograph? If so, was it taken from a high-flying aircraft, or from outer space? Is it a satellite image, or...
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Topics: What -- Opportunity, What -- Earth, Where -- Atlantic Ocean, Where -- Iceland, Where -- Greenland,...
Source: http://visibleearth.nasa.gov/view_rec.php?id=16401
45
45
Oct 30, 2009
10/09
by
Image courtesy USGS and science team
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eye 45
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<font size="-2" face="helvetica, arial, sans"> <a href="http://earthobservatory.nasa.gov/Newsroom/NewImages/Images/landsat_reno_20010619_lrg.jpg">True-color hi-res image</a> <br/> <a href="http://earthobservatory.nasa.gov/Newsroom/NewImages/Images/landsat_reno_20010619_IRlrg.jpg">Infrared hi-res image</a></font>A large wildfire still burns in the Sierra...
Topics: What -- Landsat 7, Where -- Nevada
Source: http://visibleearth.nasa.gov/view_rec.php?id=1826
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30
Nov 4, 2009
11/09
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NASA image courtesy Jeff Schmaltz, at NASA GSFC
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A dark plume of ash streamed from the Sheveluch volcano on October 20, 2004, at 1:10 UTC when the Moderate Resolution Imaging Spectroradiometer (<a href="http://modis.gsfc.nasa.gov">MODIS</a>) on NASA’s <a href="http://terra.nasa.gov/">Terra</a> satellite captured this image. Located on Russia’s Kamchatka Peninsula, the volcano is one the region’s largest and most active. Sheveluch has been erupting on and off for...
Source: http://visibleearth.nasa.gov/view_rec.php?id=19678
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52
Oct 30, 2009
10/09
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Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
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eye 52
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The Southeastern United States is on display in this MODIS true-color image that was captured on October 26, 2001. Autumn colors can be seen stretching along the Appalachian Mountains, starting at the image's center and heading to the northeast. Also visible is the Mississippi River beginning in the upper-left hand corner of the image and flowing south, eventually discharging into the Gulf of Mexico in a fury of sediment and phytoplankton.Also visible in Virginia, the upper-right corner, are 2...
Topics: Where -- United States of America, Where -- Mississippi, Where -- Gulf of Mexico, Where -- Virginia
Source: http://visibleearth.nasa.gov/view_rec.php?id=2219
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44
Oct 30, 2009
10/09
by
Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
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eye 44
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Across the southern United States, the <a HREF="http://modis.gsfc.nasa.gov" target="outlink">Moderate Resolution Imaging Spectroradiometer</a> (MODIS) on the <a HREF="http://aqua.nasa.gov" target="outlink">Aqua</a> satellite detected scores of fires burning on March 24, 2003. In the image, the fires have been marked with red dots. At this time of year, the fires can have a variety of causes. Some are...
Topics: Where -- United States of America, Where -- Oklahoma, Where -- Arkansas, Where -- Mississippi,...
Source: http://visibleearth.nasa.gov/view_rec.php?id=5098
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Nov 5, 2009
11/09
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Image courtesy Jeff Schmaltz, at NASA GSFC.
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The MODIS instrument onboard the Aqua spacecraft captured this true-color image of Typhoon Etau?the 10th typhoon of the season?as it was located 470 kilometers south-southeast of Naha, capital of Okinawa Prefecture. Etau was moving north-northwest at 25 km per hour with sustained winds of 165 km per hour (104 mph) and is expected to reach Okinawa Island very early tomorrow morning. Sensor: Aqua/MODIS.
Topic: What -- Aqua
Source: http://visibleearth.nasa.gov/view_rec.php?id=18764
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104
Oct 30, 2009
10/09
by
Jacques Descloitres, MODIS Land Rapid Response Team
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eye 104
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This true-color MODIS image shows a phytoplankton bloom (blue-green swirls) occurring in the Bering Sea. Sensor: Terra/MODIS. Data Start Date: 6/7/01.
Topics: Where -- Bering Sea, Where -- Russia
Source: http://visibleearth.nasa.gov/view_rec.php?id=1965
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Oct 30, 2009
10/09
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Image courtesy NASA/GSFC/LaRC/JPL,
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The peaks of the Wasatch and Uinta Ranges provide spectacular backdrops for the 2002 Winter Olympics, to be held in Salt Lake City, Utah. The mountains surrounding Salt Lake City are renowned for the dry, powdery snow that results from the arid climate and location at the western edge of the Rocky Mountains and eastern rim of the Great Basin.This early-winter image pair was acquired by the Multi-angle Imaging SpectroRadiometer (MISR) on December 31, 2000. The top image is a natural-color view...
Topics: What -- MISR, What -- STEREO A, What -- STEREO, Where -- Salt Lake City, Where -- Utah, Where --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=2395
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45
Oct 30, 2009
10/09
by
Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
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eye 45
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These true-color MODIS images feature southernmost Brazil, South America’s largest country. On November 12, 2002, other countries shown are Paraguay (top left), Argentina (left), and Uruguay (bottom). Notice the dense green vegetation of the “peninsula” of Argentina. This is one of the few remaining tracts of the Atlantic Rainforest ecosystem which once extended up and down the eastern coast of South America and inland for hundreds of miles. On September 25, the southern tip of Paraguay...
Topics: Where -- Brazil, Where -- Paraguay, Where -- Argentina, Where -- Uruguay
Source: http://visibleearth.nasa.gov/view_rec.php?id=4568
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47
Nov 4, 2009
11/09
by
Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
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eye 47
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Forest fires have swept through scenic woodlands along the French Riviera on the country’s Mediterranean coastline, killing five people, destroying scenic forests and forcing thousands to evacuate the region. These images of the region show the Maures hill region along the coast of southeast France in true and false-color on July 28 and 29, 2003, and the wider Mediterranean region on July 29, 2003.On July 28, a dark brown burn scar (red in the false-color image) is evident to the northeast of...
Topics: What -- Apex, Where -- France, Where -- Italy
Source: http://visibleearth.nasa.gov/view_rec.php?id=5536
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eye 89
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Landcover classification is a description of the type of vegetation growing in an area. Different types of plants (e.g., grasses versus pine trees) reflect uniquely, giving a 'spectral signature'. Scientists use satellites to detect the spectral signature of vegetation and produce landcover classification maps from the data. Landcover classification data has applications in urban planning, natural resources management, wildlife biology, and forestry. (Data produced by the University of...
Topic: Where -- Maryland
Source: http://visibleearth.nasa.gov/view_rec.php?id=7860
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67
Nov 5, 2009
11/09
by
Mark Gray, MODIS Atmosphere Team, NASA GSFC
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This spectacular, full-color image of the Earth is a composite of the first full day of data gathered by the Moderate-resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Terra spacecraft. MODIS collected the data for each wavelength of red, green, and blue light as Terra passed over the daylit side of the Earth on April 19, 2000. Terra is orbiting close enough to the Earth so that it cannot quite see the entire surface in a day, resulting in the narrow gaps around the equator. Although...
Topics: What -- Earth, What -- Terra, What -- Sun, Where -- United States of America, Where -- Madagascar
Source: http://visibleearth.nasa.gov/view_rec.php?id=637
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Oct 30, 2009
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Image courtesy NASA Johnson Space Center
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This classic photograph of the Earth was taken on December 7, 1972. The original caption is reprinted below:View of the Earth as seen by the Apollo 17 crew traveling toward the moon. This translunar coast photograph extends from the Mediterranean Sea area to the Antarctica south polar ice cap. This is the first time the Apollo trajectory made it possible to photograph the south polar ice cap. Note the heavy cloud cover in the Southern Hemisphere. Almost the entire coastline of Africa is clearly...
Topics: What -- Earth, What -- Apollo 17, What -- Moon, What -- Polar, Where -- Mediterranean Sea
Source: http://visibleearth.nasa.gov/view_rec.php?id=1597
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Nov 5, 2009
11/09
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NASA image created by Jesse Allen, Earth Observatory, using data obtained from the
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Like the freshly raked white sand of a well-tended Japanese garden, rows of clouds stream over the Bering Sea from the edge of the sea ice. Called cloud streets, these cumulus clouds form when cold air from the ice blows over the open ocean, chilling the moist air. As the temperature drops, water freezes into tiny clouds, which are arranged in neat rows in line with the powerful sweep of the wind. Though some clouds form over the cracking sea ice on the right side of the image, most are over...
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Topics: Where -- Bering Sea, Where -- Alaska, Where -- Russia
Source: http://visibleearth.nasa.gov/view_rec.php?id=17443
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Nov 4, 2009
11/09
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Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
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A few scattered fires burned in southern India on January 14, 2004, when the Moderate Resolution Imaging Spectroradiometer (<a href="http://modis.gsfc.nasa.gov">MODIS</a>) on NASA’s <a href="http://terra.nasa.gov/">Terra</a> satellite captured this image. The fires have been marked with red dots. The two mountain ranges of southern India are defined by dark green vegetation that contrasts with the desert landscape....
Source: http://visibleearth.nasa.gov/view_rec.php?id=6612
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Nov 5, 2009
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Astronaut photographs , , and were taken November 21, 2002 and are provided by the Earth Sciences and Image Analysis Laboratory at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC .
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<a HREF="http://eol.jsc.nasa.gov/sseop/images/EO/highres/ISS005/ISS005-E-21125.JPG"> High resolution image ISS005-E-21125</a><br/><a HREF="http://eol.jsc.nasa.gov/sseop/images/EO/highres/ISS005/ISS005-E-21126.JPG"> High resolution image ISS005-E-21126</a><br/><a HREF="http://eol.jsc.nasa.gov/sseop/images/EO/highres/ISS005/ISS005-E-21127.JPG"> High resolution image...
Topics: What -- International Space Station (ISS), Where -- Australia
Source: http://visibleearth.nasa.gov/view_rec.php?id=16286
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Nov 5, 2009
11/09
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Image courtesy Jeff Schmaltz, at NASA GSFC
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Sicily's Mt.Etna is erupting for the fourth straight day, and small earthquakes continue to rumble in the region, causing the evacuation of at least 1,000 people according to news reports. Reports indicate that lava flows are slowing, and no communities appear to be in danger, although tourist facilities farther up the mountain experienced some losses. This true-color image from the <a HREF="http://modis.gsfc.nasa.gov" target="outlink">Moderate Resolution...
Topic: Where -- Mediterranean Sea
Source: http://visibleearth.nasa.gov/view_rec.php?id=18132
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Nov 5, 2009
11/09
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Image courtesy Jacques Descloitres, at NASA GSFC
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Across the dark brown ridges and rock formations of southern Afghanistan (top), Iran (left) and Pakistan (bottom right) streamers of pale dust swirl over the arid terrain in this <a HREF="http://modis.gsfc.nasa.gov" target="outlink">Moderate Resolution Imaging Spectroradiometer</a> (MODIS) image from August 20, 2003, from the <a HREF="http://terra.nasa.gov/" target="outlink">Terra</a> satellite.The...
Topics: Where -- Afghanistan, Where -- Iran, Where -- Pakistan
Source: http://visibleearth.nasa.gov/view_rec.php?id=18805
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Nov 4, 2009
11/09
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Images produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC).
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This image shows Typhoon Nanmadol after it crossed the Philippines. The image was taken at 22:29 UTC on December 2, 2004, and shows the horizontal distribution of rain intensity as seen from above by the TRMM satellite. Rain rates in the center swath are from the TRMM Precipitation Radar (PR), the first precipitation radar in space, while rain rates in the outer swath are from the TRMM Microwave Imager (TMI). The rain rates are overlaid on infrared (IR) data from the TRMM Visible Infrared...
Topics: What -- Tropical Rainfall Measuring Mission (TRMM), What -- Imager, Where -- Philippines
Source: http://visibleearth.nasa.gov/view_rec.php?id=19749
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Nov 4, 2009
11/09
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Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
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A massive iceberg that had been blocking traditional shipping routes to McMurdo Station, the National Science Foundation’s research station in Antarctica, snapped in two seemingly overnight. The B-15A iceberg seemed to be intact in the Terra MODIS image recorded on October 7, 2003. But Moderate Resolution Imaging Spectroradiometer (MODIS) images starting on October 9 show the iceberg in two pieces. The largest section, top, is about 75 miles long, and the shorter section, called B-15J, is...
Topics: What -- Terra, Where -- Ross Sea, Where -- Wisconsin, Where -- Madison
Source: http://visibleearth.nasa.gov/view_rec.php?id=5891
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Nov 4, 2009
11/09
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Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
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eye 117
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The dark streak curving northeast across the Atlantic Ocean in this Moderate Resolution Imaging Spectroradiometer (<a href="http://modis.gsfc.nasa.gov">MODIS</a>) image is probably not significantly darker than the surrounding ocean water. Its appearance is likely to be a trick of light. The rest of the ocean is bright and silvery because of sunglint—a phenomenon that occurs when the sun’s light is reflected off a smooth surface into MODIS’ “eye.”...
Topic: Where -- Atlantic Ocean
Source: http://visibleearth.nasa.gov/view_rec.php?id=6395
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Oct 30, 2009
10/09
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Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
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SeaWiFS image of the ash, steam, and smoke cloud from Mount Oyama on Miyake Jima Island south of Tokyo, Japan several hours after the eruption this morning. Sensor: OrbView-2/SeaWiFS. Data Start Date: 8/29/00.
Topics: Where -- Tokyo, Where -- Japan
Source: http://visibleearth.nasa.gov/view_rec.php?id=886
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Nov 4, 2009
11/09
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Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
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Bright colors in the ocean waters off the coast of Namibia tell a story of marine life and death. In this region of the South Atlantic, winds push the warm surface water westward, and cold waters from the bottom of the ocean rush up in their place. The cold water carries with it the nutrients that have sunk to the ocean floor, providing a boon to ocean life. In particular, microscopic plants called phytoplankton thrive on the added nutrients. In turn, these tiny plants are a source of food for...
Topic: Where -- Namibia
Source: http://visibleearth.nasa.gov/view_rec.php?id=6725
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Oct 30, 2009
10/09
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Image courtesy National Snow and Ice Data Center.
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Climate data show that winter temperatures in the northernmost regions of the world have warmed alarmingly in a very short period. Parts of Alaska and northern Eurasia, for example, have warmed by nearly 11 degrees Fahrenheit in the winter months over the past 30 years. Climate evidence from the past four centuries gleaned from ice cores, lake cores, and tree rings indicates a gentler warming trend that extends back 400 years.This image shows the winter temperature trend in the Arctic from 1966...
Topic: Where -- Alaska
Source: http://visibleearth.nasa.gov/view_rec.php?id=15493
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Nov 4, 2009
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Astronaut photographs and were taken with an Electronic Still Camera on June 22, 2003 at 13:32;46 GMT. The images are provided by the Earth Sciences and Image Analysis Laboratory at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC
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Which came first, the clouds or the dust? Both clouds and dust can be important factors influencing regional climate, and they are frequently observed together.In this view taken from the International Space Station, two images were merged to create a mosaic of a dust storm and thunderstorm over the Red Sea. By interpreting the mosaic, we make a guess about which came first.Saudi Arabia’s southernmost coast facing the Red Sea appears in the foreground, and the African side of the Red Sea in...
Topics: What -- International Space Station (ISS), Where -- Red Sea, Where -- Eritrea, Where -- Arabian Sea
Source: http://visibleearth.nasa.gov/view_rec.php?id=16496
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Nov 5, 2009
11/09
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NASA/JPL/NIMA
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On January 26, 2001, the Kachchh region in western India suffered the most deadly earthquake in India's history. Shortly thereafter, geologists traversed the region looking for ground surface disruptions, such as fault breaks, that could provide clues to the tectonic processes here. Shuttle Radar Topography Mission (SRTM) scientists provided stereoscopic images to the geologists, similar to this anaglyph view of the terrain northwest of the city of Bhuj. The geologists reported back that the...
Topics: What -- Shuttle Radar Topography Mission, What -- SRTM, What -- Landsat 7, What -- Earth, What --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=1782
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Nov 5, 2009
11/09
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NASA image by Jesse Allen, Earth Observatory, using data courtesy NASA GSFC
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A dense gray pall of pollution covered much of eastern China on January 4, 2004. The haze has been lingering over this region for more than a month. Some of the aerosol can be seen blowing eastward across the Yellow Sea. This true-color scene was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Terra satellite. Sensor: Terra/MODIS.
Topics: What -- Terra, Where -- China, Where -- Yellow Sea
Source: http://visibleearth.nasa.gov/view_rec.php?id=19050
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Nov 4, 2009
11/09
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NASA image courtesy Liam Gumley, University of Wisconsin-Madison, made from data provided by NOAA/NESDIS.
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Ash rained down on Saipan, the main island in the chain of islands that make up the Northern Mariana Islands, and its neighbor Tinian on April 6, 2005. The sky over the islands darkened when the Anatahan volcano exploded late on April 5, and nearly 12 hours later, when the Moderate Resolution Imaging Spectroradiometer (<a href="http://modis.gsfc.nasa.gov">MODIS</a>) on NASA’s <a href="http://aqua.nasa.gov/">Aqua</a>...
Topics: Where -- Saipan, Where -- Northern Mariana Islands, Where -- Guam
Source: http://visibleearth.nasa.gov/view_rec.php?id=19937
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Nov 5, 2009
11/09
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Terra MODIS data acquired by direct broadcast at the University of South Florida (Judd Taylor) Image processed at the University of Wisconsin-Madison (Liam Gumley)
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Hurricane Wilma remained a powerful Category 4 storm when the Moderate Resolution Imaging Spectroradiometer (<a href="http://modis.gsfc.nasa.gov">MODIS</a>) on NASA’s <a href="http://terra.nasa.gov/">Terra</a> satellite took this image at 12:25 p.m. Eastern Daylight Time, on Friday, October 21, 2005. Two days earlier, Wilma had surged from tropical storm to Category 5 hurricane in record time. Winds around the eyewall...
Topics: Where -- Gulf of Mexico, Where -- Cuba, Where -- Florida
Source: http://visibleearth.nasa.gov/view_rec.php?id=20339
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Nov 5, 2009
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NASA Goddard Space Flight Center Image by Reto Stöckli (land surface, shallow water, clouds). Enhancements by Robert Simmon (ocean color, compositing, 3D globes, animation). Data and technical support: MODIS Land Group; MODIS Science Data Support Team; MODIS Atmosphere Group; MODIS Ocean Group Additional data: USGS EROS Data Center (topography); USGS Terrestrial Remote Sensing Flagstaff Field Center (Antarctica); Defense Meteorological Satellite Program (city lights).
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This spectacular “blue marble” image is the most detailed true-color image of the entire Earth to date. Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer (.386 square mile) of our planet. These images are freely available to educators, scientists, museums, and the public. This record includes preview images and...
Topics: What -- Earth, What -- Polar, What -- Visible Light, What -- Defense Meteorological Satellite
Source: http://visibleearth.nasa.gov/view_rec.php?id=2433
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Nov 5, 2009
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NASA JPL
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This is a false-color radar image of Central Africa, showing the Virunga Volcano chain along the borders of Rwanda, Zaire and Uganda. This area is home to the endangered mountain gorillas. <br/><br/> This C- and L-band image was acquired on April 12, 1994, on orbit 58 of space shuttle Endeavour by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR). The area is centered at about 1.75 degrees south latitude and 29.5 degrees east longitude. The...
Topics: What -- Space Shuttle Orbiter, What -- Endeavour, What -- Spaceborne Imaging Radar, Where --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=539
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Nov 4, 2009
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Astronaut photograph was taken July 27, 2003, with a Kodak DCS760 digital camera equipped with an 800-mm lens, and is provided by the Earth Observations Laboratory, Johnson Space Center. The supports the laboratory to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC
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Founded by Alexander the Great in 331 BC on the Mediterranean coast of Egypt, Alexandria became a center of trade and learning in the ancient world. Alexander built the causeway between the Eastern and Western Harbors, joining Pharos Island (arrow) to the mainland. Alexandria’s cultural status was symbolized by the lighthouse on Pharos, one of the “Seven Wonders of the World.” The causeway is still known as the old part of the modern city. Since the year 2000, underwater archeologists...
Topics: What -- International Space Station (ISS), Where -- Egypt
Source: http://visibleearth.nasa.gov/view_rec.php?id=16833
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Oct 30, 2009
10/09
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Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
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Often regarded as the southeastern border of Europe, the Caucasus Mountains can be seen here stretching from the Black Sea (left) to the Caspian Sea (right). The mountain range spans 700 miles (1125 km), crossing the countries of Russian Federation, Georgia, and Azerbaijan from left to right respectively. With a snowline of approximately 11,000 feet and peaks such as Mt. Elbrus, that reach 15,000 feet, much of the snow visible in this image is present year round. Also visible in this image are...
Topics: Where -- Black Sea, Where -- Caspian Sea, Where -- Georgia, Where -- Azerbaijan
Source: http://visibleearth.nasa.gov/view_rec.php?id=2581
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Oct 30, 2009
10/09
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Image was provided by the at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC
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<a href="http://eol.jsc.nasa.gov/sseop/images/EO/highres/ISS004/ISS004-E-5201.JPG">high resolution</a> 1.0 MB JPEGAlthough this photograph may appear to be a small pit mine as photographed from the air, it is actually a pit mine that is about a mile wide and just over a thousand feet deep and was photographed by astronauts orbiting the Earth on board the International Space Station. The New Cornelia Mine is located just south of Ajo, Arizona. Small-scale...
Topics: What -- Earth, What -- International Space Station (ISS), Where -- Arizona
Source: http://visibleearth.nasa.gov/view_rec.php?id=2931
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Nov 5, 2009
11/09
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Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE
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This SeaWiFS view shows the Misteriosa Bank between Cuba and the Yucatan peninsula. The Cayman islands are visible in the center of the image. Sensor: OrbView-2/SeaWiFS. Data Start Date: 2/5/98.
Topics: Where -- Cuba, Where -- Cayman Islands
Source: http://visibleearth.nasa.gov/view_rec.php?id=1160
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Oct 30, 2009
10/09
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Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
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Broken sea ice covers Antarctica's Bellinghausen Sea in these true-color Terra MODIS image acquired in October and November 2002. (The image from Oct. 18 also shows the Amundesen Sea, to the west.)Snow and ice are so pervasive in this image that the actual land is almost indistinguishable. Close inspection of the image reveals that snow on the land appears raised, has a rougher texture than the sea ice, and appears slightly shadowed. This picture was taken during the height of the year's sea...
Topics: What -- Terra, Where -- Bellingshausen Sea
Source: http://visibleearth.nasa.gov/view_rec.php?id=3939
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Nov 4, 2009
11/09
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Johnson Space Center
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Mt. Everest is the highest (29,035 feet, 8850 meters) mountain in the world. This detailed look at Mt. Everest and Lhotse is part of a more extensive photograph of the central Himalaya taken in October 1993 that is one of the best views of the mountain captured by astronauts to date. It shows the North and South Faces of Everest in shadow with the Kangshung Face in morning light. Other major peaks in the immediate area are Nuptse and Bei Peak (Changtse). The picture was taken looking slightly...
Topics: What -- Space Shuttle Orbiter, Where -- Johnson Space Center (JSC), Where -- Texas, Where -- Austin
Source: http://visibleearth.nasa.gov/view_rec.php?id=15623
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Nov 5, 2009
11/09
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Image courtesy NASA/JPL/NIMA
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These two images are two-dimensional (top) and three-dimensional (bottom) views of the same area, southeast of Bhuj, India. Together they demonstrate how NASA's <a href="http://www.jpl.nasa.gov/srtm/" target="outlink">Shuttle Radar Topography Mission</a> (SRTM) elevation models can be used to help in the interpretation of satellite imagery. The image was acquired by the Landsat 7 satellite. The top view is a standard panchromatic (visible and near...
Topics: What -- SRTM, What -- Landsat 7, What -- Shuttle Radar Topography Mission, What -- Earth, What --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=15735
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Oct 30, 2009
10/09
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MODIS Land Group, NASA Goddard Space Flight Center
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This MODIS true color image, acquired March 12, 2000, shows San Francisco and the surrounding countryside at 500-meter resolution. Sensor: Terra/MODIS. Data Start Date: 3/12/00.
Topic: Where -- California
Source: http://visibleearth.nasa.gov/view_rec.php?id=108
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Nov 4, 2009
11/09
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Image courtesy NASA/JPL/NIMA
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The southeast part of the island of Hokkaido, Japan, is an area dominated by volcanoes and volcanic caldera. The active Usu Volcano is at the lower right edge of the circular Lake Toya-Ko and near the center of the image. The prominent cone above and to the left of the lake is Yotei Volcano with its summit crater. The city of Sapporo lies at the base of the mountains at the top of the image and the town of Yoichi -- the hometown of SRTM astronaut Mamoru Mohri -- is at the upper left edge. The...
Topics: Who -- Mamoru Mohri, What -- Crater, What -- SRTM, What -- Shuttle Radar Topography Mission, What...
Source: http://visibleearth.nasa.gov/view_rec.php?id=15429
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Nov 5, 2009
11/09
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Images produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC)
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Heta meandered northwest of Samoa over the weekend before turning south and passing just west of the islands on Monday, January 5, 2004. Winds up to 105 miles per hour buffeted the islands knocking out power, uprooting trees, and causing extensive roof damage. After passing Samoa, Heta continued southeast and intensified with sustained winds estimated at 133 miles per hour and gusts of up to 185 miles per hour as it was headed for the tiny island nation of Niue.The <a...
Topics: What -- Tropical Rainfall Measuring Mission (TRMM), What -- Imager, Where -- Samoa
Source: http://visibleearth.nasa.gov/view_rec.php?id=19054
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Oct 30, 2009
10/09
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Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
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Heavy rains in Central Europe over the past few weeks have led to some of the worst flooding the region has seen in over 100 years. The floods have killed over 100 people in Germany, Russia, Austria, Hungary and the Czech Republic and have led to as much as $20 billion in damage. This false-color image of the Elbe River and its tributaries was taken on August 18, 2002, by the <a HREF="http://modis.gsfc.nasa.gov" target="outlink">Moderate Resolution Imaging...
Topics: Where -- Germany, Where -- Russia, Where -- Austria, Where -- Hungary, Where -- Czech Republic,...
Source: http://visibleearth.nasa.gov/view_rec.php?id=3640
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Nov 4, 2009
11/09
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Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
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Southwest of Fort Peck Reservoir in eastern Montana, just east of where the Musselshell River flows in from the south to join the Missouri, a few small fires (red dots) detected by the <a HREF="http://modis.gsfc.nasa.gov" target="outlink">Moderate Resolution Imaging Spectroradiometer</a> (MODIS) on the <a HREF="http://terra.nasa.gov/" target="outlink">Terra</a> satellite on July 19, 2003, burned...
Topics: What -- Aqua, What -- Terra, Where -- Montana, Where -- Missouri
Source: http://visibleearth.nasa.gov/view_rec.php?id=5583
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Nov 5, 2009
11/09
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NASA image by Jeff Schmaltz, Goddard Space Flight Center.
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Tropical Cyclone Mala formed in the Bay of Bengal on April 24, 2006. The cyclone has been gradually building strength and size. As of April 28, it was heading towards Myanmar, possibly coming ashore there on or around April 29.This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer <a href="http://modis.gsfc.nasa.gov/">(MODIS)</a> on the <a href="http://terra.nasa.gov/">Terra</a>...
Topics: Where -- Bay of Bengal, Where -- Myanmar
Source: http://visibleearth.nasa.gov/view_rec.php?id=20640
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Oct 30, 2009
10/09
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Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
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eye 84
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In northwestern Peru, the Sechura Desert illustrates the hyper-arid conditions created along the west coast of Peru and northern Chile by the cold ocean currents welling up along the coast. These cold waters provide little in the way of evaporation that would ultimately end up as rain, and deserts like the Sechura (southwest of center) are the result. Intermingled with the dry barren landscape are rivers and streams that run out of the High peaks of the Andes, bringing pockets of water and...
Topics: Where -- Peru, Where -- Chile, Where -- Ecuador
Source: http://visibleearth.nasa.gov/view_rec.php?id=3060
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208
Nov 5, 2009
11/09
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NASA/JPL
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Island nations in the South Pacific Ocean experience natural disasters associated with typhoons, and with their proximity to the Pacific Ocean's "Ring of Fire." This radar image shows most of the northern coast of the island of Upolu in the nation of Western Samoa. Disaster managers use digital elevation models (DEMs) generated from radar data to assist in research toward disaster mitigation and management. Geologists also use DEM data of volcanic features, such as the line of...
Topics: What -- AirSAR, What -- Earth, What -- Enterprise, Where -- Pacific Ocean, Where -- Samoa, Where --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=1523
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Nov 4, 2009
11/09
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Images and animation by Robert Simmon, based on data aqcuired by the Landsat data is archived and distributed by the
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Although it is now the largest desert on Earth, during the last ice age the Sahara was a savannah with a climate similar to that of present-day Kenya and Tanzania. The annual rainfall was much greater than it is now, creating many rivers and lakes that are now hidden under shifting sands or exposed as barren salt flats. Over several hundred thousand years the rains also filled a series of vast underground aquifers. Modern African nations are now mining this <i>fossil...
Topics: What -- Earth, What -- Landsat 7, Where -- Kenya, Where -- Tanzania, Where -- Egypt, Where --...
Source: http://visibleearth.nasa.gov/view_rec.php?id=16012
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Nov 5, 2009
11/09
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Image provided by the Satellite Systems Branch
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The Dasht-e Kevir, or Great Salt Desert, is the largest desert in Iran. It is primarily uninhabited wasteland, composed of mud and salt marshes covered with crusts of salt that protect the meager moisture from completely evaporating.This image was acquired by <a HREF="http://landsat7.usgs.gov/">Landsat 7’s</a> Enhanced Thematic Mapper plus (ETM+) sensor on October 24, 2000. This is a false-color composite image made using infrared, green, and red...
Topic: Where -- Iran
Source: http://visibleearth.nasa.gov/view_rec.php?id=16084
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